Monday 9th: Phone and black 20k powerbank charged overnight, ready for the test starting on Tuesday.
The test:
I charged my phone from the powerbank whenever it reached around 20%
I did normal things with the phone; I took pictures, bluetooth and location were on regularly, I checked timetables, I navigated to places, I streamed music and Youtube videos, I had a couple of Skype calls on the laptop using my phone as an internet hotspot.
Results:
On Friday 13th at ~5pm the powerbank was empty and the phone had 15% left.
Phone: 4200 mAh
Powerbank: 20000 mAh
Should be ~5 charges. Instead it was 3 full (overnight) charges (Tues, Weds, Thurs) plus some daytime top-ups.
Trying again from today (Saturday 14th).
the Jess(e)way around 